How to modify fuel rail(dampner) for boost?
Thread Starter
TECH Fanatic
Joined: Jan 2010
Posts: 1,074
Likes: 17
From: sarasota fl
How to modify fuel rail(dampner) for boost? I will be switching to a return type rail on my 04 lq4 witch is caurrently non-return. So, what do you do to pulse dampner? I'm planning on being able to run 18/20 lbs of boost, am planning on two bosch 044 's and an aeromotive boost referenced regulator thanks
Last edited by slocaddy; Feb 17, 2015 at 04:13 PM.
Thread Starter
TECH Fanatic
Joined: Jan 2010
Posts: 1,074
Likes: 17
From: sarasota fl
Hey forcefed, so your saying just use the non return rails and hook up the way you suggest, i do like that way, seems the simplest. I thought "best" or most "consistent "way to regulate fuel pressure was to use a return rail, feed it first from the pump, then the return off the rail to the regulator. Is it really 2 different ways of doing the same thing, or is it high horsepower and/or boost levels That would make the difference? Thanks
Hey forcefed, so your saying just use the non return rails and hook up the way you suggest, i do like that way, seems the simplest. I thought "best" or most "consistent "way to regulate fuel pressure was to use a return rail, feed it first from the pump, then the return off the rail to the regulator. Is it really 2 different ways of doing the same thing, or is it high horsepower and/or boost levels That would make the difference? Thanks
The way pictured has worked to 900ish whp on E85. Very capable setup for most builds. More than enough for pump/race gas builds to 1000+ IMO.
As forcefed said, it works well.
On both of these setups I used the stock rail and returned off the regulator.
With dual walbro 430s and the second pump on a hoobs switch there's no spike in fuel pressure.
On both of these setups I used the stock rail and returned off the regulator.
With dual walbro 430s and the second pump on a hoobs switch there's no spike in fuel pressure.
Trending Topics
Thread Starter
TECH Fanatic
Joined: Jan 2010
Posts: 1,074
Likes: 17
From: sarasota fl
Yea planning the second pump on a hobbs also. I have the option of either way, just want it to be as "foolproof "as possible and not have to chase my tail because I should have done something different . Since it seems that I'll keep the non return line rail, I do have the option of using rails and intake off a 08 truck motor, the intake that looks like tbss one with the square stainless rails.what do you guys think about that one? Any benefit for a boosted motor?
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
